Water meter with magnetically driven flow restriction valve
First Claim
1. A utility flow meter including a magnetically driven valve, the meter having a pressure vessel providing a flow path from a meter inlet to a meter outlet, the valve comprising:
- a valve member positioned within the valve in the pressure vessel for movement between an open position allowing flow unrestricted by the valve member through the flow meter and a flow restriction position in which flow through the flow meter is limited to less than the unrestricted flow; and
an electrically operable control device for controlling movement of the valve member including a dry-side magnet assembly and a wet-side magnet assembly,wherein the electrically operable control device receives command signals to rotate the dry-side magnet assembly, inducing rotation of the wet-side magnet assembly to move the valve member and thereby increase or decrease flow through the metering chamber,wherein valve member is a gate configured for transverse movement along an axis of a lead screw rotationally fixed to the wet-side magnet assembly, wherein the transverse movement is driven by rotation of the wet-side magnet assembly and is perpendicular to a flow path of flow through the utility meter.
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Accused Products
Abstract
A utility flow meter including a valve having a pressure vessel providing a flow path from a meter inlet to a meter outlet through the valve is magnetically driven. The meter includes a valve member positioned within the valve in the pressure vessel for movement between an open position allowing normal flow through the flow meter and a flow restriction position in which flow through the flow meter is limited to less than the normal flow and an electrically operable control device for controlling movement of the valve member including a dry-side magnet assembly and a wet-side magnet assembly. The electrically operable control device receives command signals to rotate the dry-side magnet assembly to move the valve member and thereby increase or decrease flow through the metering chamber.
19 Citations
18 Claims
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1. A utility flow meter including a magnetically driven valve, the meter having a pressure vessel providing a flow path from a meter inlet to a meter outlet, the valve comprising:
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a valve member positioned within the valve in the pressure vessel for movement between an open position allowing flow unrestricted by the valve member through the flow meter and a flow restriction position in which flow through the flow meter is limited to less than the unrestricted flow; and an electrically operable control device for controlling movement of the valve member including a dry-side magnet assembly and a wet-side magnet assembly, wherein the electrically operable control device receives command signals to rotate the dry-side magnet assembly, inducing rotation of the wet-side magnet assembly to move the valve member and thereby increase or decrease flow through the metering chamber, wherein valve member is a gate configured for transverse movement along an axis of a lead screw rotationally fixed to the wet-side magnet assembly, wherein the transverse movement is driven by rotation of the wet-side magnet assembly and is perpendicular to a flow path of flow through the utility meter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A magnetically driven valve for controlling movement of a valve member in a flow path, the valve comprising:
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the valve member positioned within the flow path for movement between an open position allowing flow unrestricted by the valve member and a flow restriction position in which flow is limited to less than the unrestricted flow; and an electrically operable control device for controlling movement of the valve member including a dry-side magnet assembly and a wet-side magnet assembly, wherein the electrically operable control device receives command signals to rotate the dry-side magnet assembly, including rotation of the wet-side magnet assembly to move the valve member and thereby increase or decrease flow along the flow path, wherein valve member is a gate configured for transverse movement along an axis of a lead screw rotationally fixed to the wet-side magnet assembly, wherein the transverse movement is driven by rotation of the wet-side magnet assembly and is perpendicular to a flow path of flow through the utility meter. - View Dependent Claims (15, 16, 17)
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18. A utility flow meter including a valve having a pressure vessel providing a flow path from a meter inlet to a meter outlet through the valve, the valve comprising:
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a pressure vessel formed to contain the valve positioned downstream from a flow measurement system in a pressure vessel having a lay length of 7.5 inches; a valve member positioned within the valve in the pressure vessel for movement between an open position allowing flow unrestricted by the valve member through the flow meter and a flow restriction position in which flow through the flow meter is limited to less than the unrestricted flow; and an electrically operable control device for controlling movement of the valve member including a dry-side magnet assembly and a wet-side magnet assembly, wherein the electrically operable control device receives command signals to rotate the dry-side magnet assembly, inducing rotation of the wet-side magnet assembly to move the valve member and thereby increase or decrease flow through the metering chamber, wherein valve member is a gate configured for transverse movement along an axis of a lead screw rotationally fixed to the wet-side magnet assembly, wherein the transverse movement is driven by rotation of the wet-side magnet assembly and is perpendicular to a flow path of flow through the utility meter.
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Specification